<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="off" label-position="left">
      <div class="title-container">
        <h3 class="title">后台管理系统</h3>
      </div>
      <el-form-item prop="userName">
        <el-input v-model="loginForm.userName" type="text" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" type="password" placeholder="密码" @keyup.enter.native="handleLogin">
          <svg-icon slot="prefix" icon-class="password" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code">
        <el-input v-model="loginForm.code" placeholder="验证码" style="width: 63%" @keyup.enter.native="handleLogin">
          <svg-icon slot="prefix" icon-class="validCode" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" class="login-code-img" @click="getCodeImg">
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
	  <!-- <div style="font-size: 14px;color:#1890FF">注册</div> -->
	  <el-button @click.native.prevent="register" type="text" size="medium" style="margin-left: 235px;">注册</el-button>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2020 liuen.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import AuthApi from '@/api/AuthApi'
import Cookies from 'js-cookie'
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: 'Login',
  data() {
    return {
      codeUrl: '',
      cookiePassword: '',
      loginForm: {
        userName: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      loginRules: {
        userName: [{ required: true, trigger: 'blur', message: '用户名不能为空' }],
        password: [{ required: true, trigger: 'blur', message: '密码不能为空' }],
        code: [{ required: true, trigger: 'change', message: '验证码不能为空' }]
      },
      loading: false,
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.getCodeImg()
    this.getCookie()
  },
  methods: {
    getCodeImg() {
      AuthApi.getCodeImg().then(res => {
        this.codeUrl = 'data:image/gif;base64,' + res.data.img
        this.loginForm.uuid = res.data.uuid
      })
    },
    getCookie() {
      const userName = Cookies.get('userName')
      const password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        userName: userName === undefined ? this.loginForm.userName : userName,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          if (this.loginForm.rememberMe) {
            Cookies.set('userName', this.loginForm.userName, { expires: 30 })
            Cookies.set('password', encrypt(this.loginForm.password), { expires: 30 })
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 })
          } else {
            Cookies.remove('userName')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store.dispatch('user/Login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.getCodeImg()
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
	register(){
		this.$router.push({ path: '/register'})
	}
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/img/bgImg.jpg");
  background-size: 100% 100%;
  .title-container {
    position: relative;
    .title {
      margin: 0px auto 30px auto;
      text-align: center;
      color: #707070;
    }
  }
  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
	opacity: 0.5;
    .el-input {
      height: 38px;
      input {
        height: 38px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
  }
  .login-form:hover{
	  opacity: 1;
  }
  .login-code {
    width: 29%;
    height: 38px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .login-code-img {
    height: 38px;
  }
  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
}
</style>
